private List <PacketSummary> HandleOutgoingData(string str)
{
List <PacketSummary> packets = new List <PacketSummary>();
try
{
foreach (string packet in str.Split(new char[] { (char)1 }))
{
if (packet.Length < 2)
{
continue;
}
String newPacket = packet.Replace("" + (char)1, "");
if (newPacket.StartsWith("@A") && frmMain.Form.chkDecodeEncryption.Checked)
{
String encodeKey = packet.Substring(2);
frmMain.Form.TcpForwarder._rc4Provider = new rc4Provider(encodeKey);
}
PacketSummary summary = new PacketSummary(packet.Substring(0, 2), (packet.Substring(0, 2).Length > 0 ? packet.Substring(2) : "") + (char)1);
packets.Add(summary);
}
}
catch { }
return(packets);
}
private List <PacketSummary> HandleIncomingData(string str)
{
List <PacketSummary> packets = new List <PacketSummary>();
try
{
int amountRead = 0;
while (amountRead < str.Length)
{
int recieveLength = Base64Encoding.DecodeInt32(str.Substring(amountRead, 3));
amountRead += 3;
string packet = str.Substring(amountRead, recieveLength);
PacketSummary summary = new PacketSummary(packet.Substring(0, 2), (packet.Substring(0, 2).Length > 0 ? packet.Substring(2) : ""));
packets.Add(summary);
amountRead += recieveLength;
}
}
catch { }
return(packets);
}
private string BuildPacket(PacketSummary packet, string packetData, bool incoming)
{
string response;
if (this._incoming)
{
response = packet.Header + packetData;
response = "@" + Base64Encoding.EncodeInt32(response.Length, 2) + response;
}
else
{
response = packet.Header + packetData;
}
return(response);
}
public void LoadPcapFile(PcapFile file)
{
var stopwatch = Stopwatch.StartNew();
int packetCount = 0;
var errors = new List <Exception>();
var packetSummaries = new List <PacketSummary>();
PcapParser.Parse(file.FilePath, p =>
{
try
{
// insert packet summaries in batches
if (packetSummaries.Count >= 50000)
{
this.packetSummaryRepository.Create(packetSummaries);
packetCount += packetSummaries.Count;
packetSummaries.Clear();
}
Console.Write($"\rPackets: {packetCount}\tElapsed Time: {(int)(stopwatch.ElapsedMilliseconds / 1000)} (s)");
packetSummaries.Add(PacketSummary.Parse(p).ForFile(file.Id));
}
catch (Exception e)
{
errors.Add(e);
}
});
this.packetSummaryRepository.Create(packetSummaries);
packetCount += packetSummaries.Count;
packetSummaries.Clear();
Console.Write($"\rPackets: {packetCount}/{packetCount + errors.Count}\tElapsed Time: {(int)(stopwatch.ElapsedMilliseconds / 1000)} (s)");
Console.WriteLine(Environment.NewLine);
stopwatch.Stop();
//errors.ForEach(e => this.userInterface.Error(e.ToString()));
}
private void ShowDialogueSend(PacketSummary packet, bool incoming)
{
string packetData = Microsoft.VisualBasic.Interaction.InputBox((incoming ? "Incoming" : "Outgoing") + " packet received",
"Please edit it if you wish before sending",
frmSend.AddReadableCharacters(packet.Data),
0,
0);
packetData = frmSend.AddUnreadableCharacters(packetData);
byte[] processSend = Encoding.Default.GetBytes(BuildPacket(packet, packetData, incoming));
if (this._incoming)
{
// Send to server
frmMain.Form.TcpForwarder.DestinationState.DestinationSocket.Send(processSend, processSend.Length, SocketFlags.None);
}
else
{
// Send to client
frmMain.Form.TcpForwarder.DestinationState.SourceSocket.Send(processSend, processSend.Length, SocketFlags.None);
}
}
